I believe Expedition 50 had a fun and good ISS crew. I base this declaration solely on the moments they shared on social media. This logic is completely bulletproof and there's no point trying to prove otherwise.
NASA has only flown astronauts aboard a rocket's first flight once, when John Young and Bob Crippen took space shuttle Columbia on the boldest test flight in history. What are the risks of repeating the feat for SLS?
Today, NASA announced progress on a spacecraft that would assess whether Jupiter's Moon Europa is habitable, and earlier this month, an agency-sponsored science team released a report on a separate lander mission that would directly search for signs of life.
Planetary Society CEO Bill Nye and LightSail systems engineer Barbara Plante recently traveled to Japan for a solar sailing symposium. Our Q&A with Plante discusses everything from CubeSat attitude control systems to robotic giraffes in Tokyo.
NASA is currently accepting proposals for its next New Frontiers-class planetary science mission. What does the agency look for in a winning proposal? The two scientists behind the ORISIS-REx and Psyche missions share some tips.
NASA's current human spaceflight goal is Mars, but the Trump administration could change that to the Moon. Is that a good idea? Here's an in-depth look at the differences in science gain, the arguments for and against a potential commercial market, and whether or not the technological and operational challenges required to reach the Moon apply to Mars.
This Friday, Charles Bolden resigns as NASA administrator after a stint of 2,744 days. Robert Lightfoot, the agency's highest-ranking civil servant, will take over as acting admin. How long will Lightfoot serve? If history serves as a guide, it could be a while.
SpaceX says they fixed a problem with the helium pressurization system that destroyed a Falcon 9 rocket last year. The company pushes the boundaries of rocket science, creating an occasional jaw-dropping fireball in the process. But will the risk-reward equation change when SpaceX starts flying astronauts?
NASA announced two new asteroid missions today named Lucy and Psyche that will fill important gaps in our understanding of how the solar system was formed. Here are eight things to know about the two missions.
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